Lenovo N20 Chromebook - Manual (Page 5)

Contents
Chapter 1. Safety information . . . . . 1
General safety . . . . . . . . . . . . . . . 1
Electrical safety . . . . . . . . . . . . . . 1
Safety inspection guide . . . . . . . . . . . 2
Handling devices that are sensitive to electrostatic
discharge. . . . . . . . . . . . . . . . .
3
Grounding requirements . . . . . . . . . . . 4
Safety notices (multilingual translations) . . . . . 4
Chapter 2. General checkout . . . . . 19
What to do first . . . . . . . . . . . . . . 19
Checking the ac power adapter . . . . . . . . 20
Chapter 3. Idetifying FRUs (CRUs) . . 21
All FRUs (CRUs) for Lenovo N20 Chromebook . . 21
Lenovo part numbers of replacement FRUs or
CRUs . . . . . . . . . . . . . . . . . .
24
Chapter 4. Removing a FRU or CRU . 29
General guidelines . . . . . . . . . . . . . 29
Remove the keyboard . . . . . . . . . . . . 29
Remove the upper case . . . . . . . . . . . 31
Remove the WLAN & Bluetooth combo module. . 33
Remove the LCD module . . . . . . . . . . 34
Remove the dc-in connector . . . . . . . . . 35
Remove the battery pack . . . . . . . . . . 37
Remove the speakers . . . . . . . . . . . . 38
Remove the system board and the I/O board. . . 39
Disassemble the LCD module . . . . . . . . . 40
Remove the LCD bezel. . . . . . . . . . 40
Remove the LCD panel . . . . . . . . . 41
Remove the hinges, the LCD cable, and the
WLAN antennas . . . . . . . . . . . .
42
Remove the camera board and the camera
cable. . . . . . . . . . . . . . . . .
43
Appendix A. Features, controls, and
connectors . . . . . . . . . . . . . .
45
Appendix B. Lenovo part numbers of
screws used on N20 Chromebook . .
47
Appendix C. Lenovo part numbers of
ac adapters and power cords . . . .
49
Appendix D. Label locations . . . . . 51
Trademarks . . . . . . . . . . . . . . . . liii
© Copyright Lenovo 2014 iii